OGLE14-073 – a promising pair-instability supernova candidate

21. September 2018

In a recent publication in Monthly Notices of the Royal Astronomical Society, an international team of scientists, including PSO researcher Markus Kromer, investigated explosion models for the bright Type II supernova OGLE14-073. With a rise time to peak brightness of 90 days, OGLE14-073 evolved very slowly. In this paper, the authors present explosion models and synthetic light curves and spectra for OGLE14-073. They find satisfactory fits to OGLE14-073 for a pair-instability supernova in a massive progenitor star with an initial mass of 150 solar masses and low metallicity (Z=0.001), making OGLE14-073 to one of the most promising candidates for a pair-instability explosion.

Alexandra Kozyreva, Markus Kromer, Ulrich M Noebauer and Raphael Hirschi: OGLE14-073 – a promising pair-instability supernova candidate. Monthly Notices of the Royal Astronomical Society, Volume 479, Issue 3, 21 September 2018, Pages 3106–3114. Full text available at https://arxiv.org/abs/1804.05791

About HITS

HITS, the Heidelberg Institute for Theoretical Studies, was established in 2010 by physicist and SAP co-founder Klaus Tschira (1940-2015) and the Klaus Tschira Foundation as a private, non-profit research institute. HITS conducts basic research in the natural, mathematical, and computer sciences. Major research directions include complex simulations across scales, making sense of data, and enabling science via computational research. Application areas range from molecular biology to astrophysics. An essential characteristic of the Institute is interdisciplinarity, implemented in numerous cross-group and cross-disciplinary projects. The base funding of HITS is provided by the Klaus Tschira Foundation.

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